Merge pull request #5605 from mariafromano-25/update-kep-4205-to-ga

KEP-4205: Graduate Expose PSI Metrics to GA

Author: k8s-ci-robot

keps/prod-readiness/sig-node/4205.yaml

@@ -6,3 +6,5 @@ alpha:
   approver: "@johnbelamaric"
 beta:
   approver: "@johnbelamaric"
+stable:
+  approver: "@johnbelamaric"

keps/sig-node/4205-psi-metric/README.md

@@ -284,8 +284,11 @@ We expect no non-infra related flakes in the last month as a GA graduation crite
     - PSI metrics collection doesn't introduce excessive CPU or memory usage increase in the kubelet
 
 #### GA
-- Gather evidence of real world usage.
-- No major issue reported.
+- Quantify the cAdvisor and kubelet-level overhead of PSI metric collection, especially where PSI is disabled at the kernel level.
+- Validate with SIG Node that collection overhead is acceptable for general use cases, or include opt-out knobs.
+- Expanded stress testing with diverse environments and scenarios, while maintining acceptable minimal resource consumption like outlined in Beta perf testing.
+- Gather evidence of real-world usage from beta users.
+- No major issues reported.
 
 #### Deprecation
 
@@ -375,7 +378,7 @@ feature.
 
 NOTE: Also set `disable-supported` to `true` or `false` in `kep.yaml`.
 -->
-Yes
+Yes, but starting in v1.36 where this feature graduates to GA, the KubeletPSI feature gate will be locked to true and can no longer be disabled.
 
 ###### What happens if we reenable the feature if it was previously rolled back?
 No PSI metrics will be available in kubelet Summary API nor Prometheus metrics if the

keps/sig-node/4205-psi-metric/kep.yaml

@@ -3,7 +3,7 @@ kep-number: 4205
 authors:
   - "@ndixita"
   - "@dragoncell"
-  - "roycaihw"
+  - "@roycaihw"
 owning-sig: sig-node
 participating-sigs:
   - sig-node
@@ -24,17 +24,18 @@ see-also: []
 replaces: []
 
 # The target maturity stage in the current dev cycle for this KEP.
-stage: beta
+stage: stable
 
 # The most recent milestone for which work toward delivery of this KEP has been
 # done. This can be the current (upcoming) milestone, if it is being actively
 # worked on.
-latest-milestone: "v1.34"
+latest-milestone: "v1.36"
 
 # The milestone at which this feature was, or is targeted to be, at each stage.
 milestone:
   alpha: "v1.33"
   beta: "v1.34"
+  stable: "v1.36"
 
 # The following PRR answers are required at alpha release
 # List the feature gate name and the components for which it must be enabled
@@ -43,7 +44,7 @@ feature-gates:
     components:
       - kubelet
 
-disable-supported: true
+disable-supported: false
 
 # The following PRR answers are required at beta release
 metrics: